JP4101479B2 - Arc processing machine equipped with processing condition display device and welding condition display device for arc welding machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a machining condition display device that displays each machining condition of an arc machine.
[0002]
[Prior art]
Hereinafter, an arc welding machine will be selected as a representative example of arc processing machines such as arc welding machines and arc cutting machines of the prior art, and a connection diagram of the welding condition display device of the arc welding machine shown in FIG. 2 will be described. In FIG. 2, a DC power source main circuit DPS converts AC power into DC and supplies DC power, and a secondary side switching circuit STR converts the DC power into AC power to convert the non-consumable electrode 1 and the workpiece. AC power is supplied to the object 2. The output current detection circuit ID detects the output current and outputs an output current detection signal Id. The driver circuit DR converts the level of the driver circuit drive signal DPs into a DC power supply drive signal Dr that can be driven by the DC power supply main circuit DPS, and outputs it. The secondary side driver circuit DS converts the level of the secondary side driver circuit drive signal STr into a secondary side driver drive signal Ds that can be driven by the secondary side switching circuit, and outputs the secondary side driver drive signal Ds.
[0003]
The welding condition setting unit WCE includes a welding current setting circuit WI for setting a welding current setting signal Wi having a predetermined value, a pulse current setting circuit PI for setting a pulse current setting signal Pi, and a crater current for setting a crater current setting signal Ci. Setting circuit CI, initial current setting circuit EI for setting initial current setting signal Ei, pulse frequency setting circuit PF for setting pulse frequency setting signal Pf, up slope time setting circuit AT for setting up slope time setting signal At, down slope A down-slope time setting circuit DT for setting the time setting signal Dt, an afterflow setting circuit AF for setting the afterflow setting signal Af, and a cleaning width setting circuit CL for setting the cleaning width setting signal Cl are formed.
[0004]
The welding method setting unit WCS outputs a welding method setting circuit WS that outputs a welding method setting signal Ws for selecting either TIG welding or DC manual welding, and a pulse setting signal Ps for selecting whether or not a pulse current is present. Pulse setting circuit PS to perform, DC / AC welding setting signal DAS to output DC / AC welding setting signal DAs for selecting either DC welding or AC welding, and crater setting signal Cs to select with or without crater filler Is formed by a crater setting circuit CS.
[0005]
The output command value control unit OWC is formed by a DC welding command control circuit DC, a DC pulse welding command control circuit DPC, an AC welding command control circuit AC, and an AC pulse welding command control circuit APC.
[0006]
The DC welding command control circuit DC is a DC welding command control signal Dc according to the values of the welding current setting signal Wi, the crater current setting signal Ci, the initial current setting signal Ei, the up slope time setting signal At, and the down slope time setting signal Dt. The DC pulse welding command control circuit DPC generates a welding current setting signal Wi, a pulse current setting signal Pi, a crater current setting signal Ci, an initial current setting signal Ei, a pulse frequency setting signal Pf, and an upslope time setting. A DC pulse welding command control signal DPc is generated and output according to the values of the signal At and the down slope time setting signal Dt.
[0007]
The AC welding command control circuit AC is responsive to the values of the welding current setting signal Wi, the crater current setting signal Ci, the initial current setting signal Ei, the up slope time setting signal At, the down slope time setting signal Dt, and the cleaning width setting signal Cl. An AC welding command control signal Ac is generated and output. The AC pulse welding command control circuit APC includes a welding current setting signal Wi, a pulse current setting signal Pi, a crater current setting signal Ci, an initial current setting signal Ei, and a pulse frequency setting signal. An AC pulse welding command control signal APc is generated and output according to the values of Pf, up slope time setting signal At, down slope time setting signal Dt, and cleaning width setting signal Cl.
[0008]
The control processing arithmetic circuit CDC outputs an output command value in accordance with each setting signal of the welding method setting signal Ws, pulse setting signal Ps, DC / AC welding setting signal DAs and crater setting signal Cs set by the welding method setting unit WCS. One of DC welding command control signal Dc, DC pulse welding command control signal DPc, AC welding command control signal Ac, and AC pulse welding command control signal APc inputted from control unit OWC is selected. Further, when the activation signal Ts is input, the control processing arithmetic circuit CDC starts operation and outputs a driver circuit drive signal DPs and a secondary side drive circuit drive signal STr.
[0009]
FIG. 3 is a timing chart showing the operation of the prior art arc welder shown in FIG. 2, and the welding conditions are set to be crater without pulse in DC TIG welding. 3A shows the output current Io of DC TIG welding, and FIG. 3B shows the start signal Ts output from the start switch TS. FIG. 3C shows a welding method setting signal Ws for selecting TIG welding and DC manual welding output from the welding method setting circuit WS. TIG welding is selected when the level is High, and DC manual welding is selected when the level is Low. To do. FIG. 3D shows a pulse setting signal Ps for selecting the presence or absence of a pulse current output from the pulse setting circuit PS. The pulse setting signal Ps is selected when the level is High, and no pulse is selected when the level is Low. . FIG. 3 (E) shows a DC / AC welding setting signal DAs for selecting either DC welding or AC welding output from the DC / AC welding setting circuit DAS. Select DC welding. FIG. 3 (F) shows a crater setting signal Cs for selecting whether or not there is a crater filler output from the crater setting circuit CS, and indicates that there is a crater filler when the level is High and no crater filler when the level is Low. select. FIG. 3G shows a secondary driver circuit drive signal STr for driving the secondary driver circuit DS, and FIG. 3H shows a driver circuit drive signal Dr for driving the driver circuit DR.
[0010]
During the welding standby period T1 shown in FIG. 3, the welding method setting signal Ws shown in FIG. 3C is set to the high level and the pulse setting signal shown in FIG. When Ps is set to Low level, the DC / AC welding setting signal DAs shown in FIG. 3E is set to Low level, and the crater setting signal Cs shown in FIG. 3F is set to High level, the control processing arithmetic circuit CDC is input. Selects and inputs the DC welding command control signal Dc among the output signals output from the output command value control unit OWC.
[0011]
When the activation signal Ts is input to the control processing arithmetic circuit CDC at time t = ta shown in FIG. 3B, the operation starts, and the secondary side drive circuit drive signal STr shown in FIG. The secondary side switching circuit is always turned on to operate as a DC power source, and the output current Io of the DC TIG welding shown in FIG. 3A is shown in accordance with the value of the DC welding command control signal Dc (not shown). Is output.
[0012]
[Problems to be solved by the invention]
In the prior art arc machine, in order to check the machining conditions, it is necessary to visually check each setting position of the machining condition setting changeover switch disposed at a predetermined position such as the front panel of the arc machine. It was necessary, it was difficult to confirm from a distance, and misidentification was likely to occur. In addition, since it is impossible to check the changes in the machining conditions during the machining operation one after another, setting errors and unnecessary settings of each changeover switch are made in response to the necessity of changing the machining conditions during the machining work that occurs frequently. It was a cause of processing defects.
[0013]
[Means for Solving the Problems]
The invention of the apparatus of claim 1 at the time of filing of the invention converts DC power into a high-frequency AC pulse voltage by an inverter circuit formed from a primary switch, and converts the high-frequency AC pulse voltage into a voltage suitable for arc machining by a main transformer. In an arc machine equipped with a machining condition display device for converting the output voltage of the main transformer into DC power again by a secondary rectifier circuit and supplying power between the electrode and the workpiece, a predetermined value The machining condition setting unit WCE for setting each machining condition set value, the machining method setting unit WCS for setting a predetermined machining method, and the set values of the machining condition setting unit WCE and the machining method setting unit WCS In the second control, the machining standby display instruction signal CDr is output during the machining standby period T1, and the driver circuit drive signal DPs is output during the machining operation period T2 by performing arithmetic processing. During the processing standby period T1, the arithmetic operation circuit CDC2 and a processing condition display unit WLED that displays each processing condition by selecting each display of processing condition setting items according to the value of the processing standby display instruction signal CDr. An arc processing machine provided with a processing condition display device provided.
[0014]
The invention of the apparatus of claim 2 at the time of filing of the invention converts DC power into a high-frequency AC pulse voltage by an inverter circuit formed from a primary switch, and converts the high-frequency AC pulse voltage into a voltage suitable for arc machining by a main transformer. In an arc machine equipped with a machining condition display device for converting the output voltage of the main transformer into DC power again by a secondary rectifier circuit and supplying power between the electrode and the workpiece, a predetermined value The machining condition setting unit WCE for setting each machining condition set value, the machining method setting unit WCS for setting a predetermined machining method, and the set values of the machining condition setting unit WCE and the machining method setting unit WCS The machining standby display instruction signal CDr is output during the machining standby period T1, and the machining operation display instruction signal CDs and the driver circuit drive are performed during the machining operation period T2 by performing arithmetic processing. In accordance with the value of the second control processing arithmetic circuit CDC2 that outputs the signal DPs and the processing standby period instruction signal CDr during the processing standby period T1, each display of the processing condition setting item is selected and processing conditions are set. And a machining condition display device including a machining condition display unit WLED that sequentially displays changes in machining conditions during the machining operation according to the value of the machining operation display instruction signal CDs during the machining operation period T2. Arc machine.
[0015]
The invention of the apparatus of claim 3 at the time of filing is an arc machining provided with a machining condition display device in which the processing condition display portion WLED of claim 1 at the time of filing and claim 2 at the time of filing is formed by a light emitting diode, lamp or EL lamp. Machine.
[0016]
The invention of the apparatus of claim 4 at the time of filing is a welding condition setting item that can be easily set by simply observing each indicator of the welding condition display portion WLED disposed at a predetermined position of the arc welder as shown in FIG. A welding condition display device for an arc welder that can confirm the above-mentioned DC power is converted into AC power by a DC power source main circuit DPS that supplies DC power by converting AC power into DC and a secondary side switching circuit STR. In a welding condition display device for an arc welding machine that supplies AC power between the non-consumable electrode 1 and the workpiece 2, a welding condition setting unit WCE that sets each welding condition setting value of a predetermined value; An output command value control unit OWC that creates an output command value according to the value of each setting signal of the welding condition setting unit WCE, a welding method setting unit WCS that sets a predetermined welding method, and the welding method setting unit WCS By In accordance with the determined welding method, during the welding standby period T1, the selection of the output command value control signal output from the welding output command value control unit OWC and the welding standby display instruction signal CDr are output, and during the welding operation period T2. In accordance with the value of the second control processing arithmetic circuit CDC2 that performs arithmetic processing and outputs the driver circuit driving signal DPs and the secondary side driving circuit driving signal STr, and the welding standby display instruction signal CDr, A display instruction drive circuit IOC for selecting and driving each display of the WLED, and a welding condition display for displaying each display of welding condition setting items during the welding standby period T1 in accordance with an output signal of the display instruction drive circuit IOC. It is the welding condition display apparatus of the arc welding machine which comprised the part WLED.
[0017]
The invention of the apparatus of claim 5 at the time of filing is a welding condition setting item that can be easily set by simply observing each indicator of the welding condition display portion WLED arranged at a predetermined position of the arc welder as shown in FIG. A welding condition display device for an arc welder that can confirm the above-mentioned DC power is converted into AC power by a DC power source main circuit DPS that supplies DC power by converting AC power into DC and a secondary side switching circuit STR. In a welding condition display device for an arc welding machine that supplies AC power between the non-consumable electrode 1 and the workpiece 2, a welding condition setting unit WCE that sets each welding condition setting value of a predetermined value; An output command value control unit OWC that creates an output command value according to the value of each setting signal of the welding condition setting unit WCE, a welding method setting unit WCS that sets a predetermined welding method, and the welding method setting unit WCS By In accordance with the determined welding method, during the welding standby period T1, the selection of the output command value control signal output from the welding output command value control unit OWC and the welding standby display instruction signal CDr are output, and during the welding operation period T2. A second control processing arithmetic circuit CDC2 that performs arithmetic processing to output a driver circuit drive signal DPs, a secondary drive circuit drive signal STr, and a welding operation display instruction signal CDs, a welding standby display instruction signal CDr, and a welding operation Between the display instruction drive circuit IOC that selects and drives each indicator of the welding condition display unit WLED according to the value of the display instruction signal CDs, and the welding standby period T1 according to the value of the welding standby display instruction signal CDr. Displays each indicator of the selected welding condition setting item, and during the welding operation period T2, the welding condition during the welding operation according to the value of the welding operation display instruction signal CDs is displayed. A welding condition display device of an arc welding machine; and a welding condition displaying portion WLED which sequentially displays a change of.
[0018]
The invention of the apparatus of claim 6 at the time of filing is a welding condition setting item that can be easily set by simply observing each indicator of the welding condition display portion WLED disposed at a predetermined position of the arc welder as shown in FIG. A welding condition display device for an arc welder that can confirm the above-mentioned DC power is converted into AC power by a DC power source main circuit DPS that supplies DC power by converting AC power into DC and a secondary side switching circuit STR. In a welding condition display device for an arc welder that supplies AC power between the non-consumable electrode 1 and the workpiece 2, a welding current setting circuit WI that sets a welding current value, and a pulse current that sets a pulse current value Setting circuit PI, crater current setting circuit CI for setting a crater current value, initial current setting circuit EI for setting an initial current value, pulse frequency setting circuit PF for setting a pulse frequency, upslope The up slope time setting circuit AT for setting the interval, the down slope time setting circuit DT for setting the down slope time, the after flow setting circuit AF for setting the after flow, and the cleaning width setting circuit CL for setting the cleaning width are formed. Welding condition setting unit WCE, DC welding command control circuit DC that creates a DC welding command value according to the values of the setting signals of welding condition setting unit WCE, and DC pulse welding command control circuit that creates a DC pulse welding command value Output command value control unit OWC formed by DPC, AC welding command control circuit AC for creating AC welding command value and AC pulse welding command control circuit APC for creating AC pulse welding command value, and TIG welding or DC manual welding Welding method setting circuit WS for selecting either, with or without pulse current Welding method formed by a pulse setting circuit PS to be selected, a DC / AC welding setting circuit DAS for selecting either DC welding or AC welding, and a crater setting circuit CS for selecting either crater filler or no crater filler In accordance with the setting unit WCS and the welding method set by the welding method setting unit WCS, the selection of the output command value control signal output from the output command value control unit OWC and the calculation process are performed, and the welding standby display instruction signal CDr, A second control processing arithmetic circuit CDC2 that outputs a driver circuit drive signal DPs, a secondary drive circuit drive signal STr, and a welding operation display instruction signal CDs, a welding standby display instruction signal CDr, and a welding operation display instruction signal CDs. In response, the display instruction drive circuit IOC for selecting and driving each indicator of the welding condition display section WLED, Each indicator of the welding condition setting item is displayed during the welding standby period T1 according to the value of the contact standby display instruction signal CDr, and during the welding operation period T2, according to the value of the welding operation display instruction signal CDs, It is a welding condition display device of an arc welding machine provided with a welding condition display unit WLED that sequentially displays a change in welding conditions during a welding operation.
[0019]
The invention of the device of claim 7 at the time of filing is the output of the welding condition display unit WLED of claim 4 at the time of filing, claim 5 at the time of filing and claim 6 at the time of filing from the display instruction drive circuit IOC as shown in FIG. Welding current indicator WID driven by welding current display signal WId, pulse current indicator PID driven by pulse current display signal PId, crater current indicator CID driven by crater current display signal CId, and initial current display signal EId. An initial current indicator EID to be driven, an AC welding indicator ADD to be driven by an AC welding indicator signal ADd, a pulse frequency indicator PFD to be driven by a pulse frequency indicator signal PFd, an upslope indicator ATD to be driven by an upslope indicator signal ATd, Downslope driven by downslope display signal DTd Flop indicator DTD, a welding condition display device of an arc welding machine, which is formed by the cleaning indicator CLD driven by a DC welding indicator DDD and cleaning display signal CLd driven by a DC welding display signal ddd.
[0020]
The invention of the device of claim 8 at the time of filing of the invention is that the welding condition indicator WLED of claim 4 at the time of filing, claim 5 at the time of filing, claim 6 at the time of filing and claim 7 at the time of filing is a light emitting diode, lamp or EL lamp. It is a welding condition display apparatus of the arc welding machine formed.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a diagram that best represents the features of the invention according to the application. Since it is the same as FIG. 4 described later, the description will be described later with reference to FIG.
[0022]
In the embodiment of the present invention, as shown in FIG. 1, an arc for easily confirming welding condition setting items simply by visually observing each indicator of the welding condition display unit WLED disposed at a predetermined position of the welding machine. A welding condition display device for a welding machine, wherein the DC power is converted into AC power by a DC power source main circuit DPS for supplying AC power by converting AC power into DC and a secondary side switching circuit STR, and is non-consumable. In a welding condition display device of an arc welder that supplies AC power between the electrode 1 and the workpiece 2, a welding current setting circuit WI that sets a welding current value, a pulse current setting circuit PI that sets a pulse current value, A crater current setting circuit CI for setting a crater current value, an initial current setting circuit EI for setting an initial current value, a pulse frequency setting circuit PF for setting a pulse frequency, and an upslope time are set. Welding condition setting section WCE formed by up slope time setting circuit AT, down slope time setting circuit DT for setting down slope time, after flow setting circuit AF for setting after flow, and cleaning width setting circuit CL for setting cleaning width A DC welding command control circuit DC that creates a DC welding command value according to the value of each setting signal of the welding condition setting unit WCE, a DC pulse welding command control circuit DPC that creates a DC pulse welding command value, and an AC welding command Output command value control unit OWC formed by AC welding command control circuit AC for creating values and AC pulse welding command control circuit APC for creating AC pulse welding command values, and selecting either TIG welding or DC manual welding Welding method setting circuit WS, pulse to select either with or without pulse current Welding method setting unit WCS formed by constant circuit PS, DC / AC welding setting circuit DAS for selecting either DC welding or AC welding, and crater setting circuit CS for selecting either with or without crater filler In accordance with the welding method set by the welding method setting unit WCS, the selection of the output command value control signal output from the output command value control unit OWC and the calculation processing are performed, and the welding standby display instruction signal CDr, the driver circuit drive According to the values of the second control processing arithmetic circuit CDC2 that outputs the signal DPs, the secondary drive circuit drive signal STr, and the welding operation display instruction signal CDs, the welding standby display instruction signal CDr, and the welding operation display instruction signal CDs, Display instruction drive circuit IOC for selecting and driving each indicator of the welding condition display section WLED, and the welding standby display instruction Each indicator of the welding condition setting item is displayed during the welding standby period T1 according to the value of the signal CDr, and during the welding operation period T2, the welding operation is being performed according to the value of the welding operation display instruction signal CDs. It is a welding condition display device of an arc welding machine provided with a welding condition display unit WLED that sequentially displays changes in welding conditions.
[0023]
【Example】
Hereinafter, an arc welding machine is selected as a representative example of an arc processing machine such as an arc welding machine or an arc cutting machine of the present invention, and a connection diagram of a welding condition display device of the arc welding machine shown in FIG. 4 will be described. In the figure, the same reference numerals as those in FIG.
[0024]
The second control processing arithmetic circuit CDC2 outputs an output command according to the values of the welding method setting signal Ws, the pulse setting signal Ps, the DC / AC welding setting signal DAs, and the crater setting signal Cs set by the welding method setting unit WCS. DC welding command control signal Dc, DC pulse welding command control signal DPc, AC welding command control signal Ac, and AC pulse welding command control signal APc input from value control unit OWC are selected and welding standby display instruction signal CDr Is output. When the start signal Ts is input from the start switch TS, the second control processing operation circuit CDC2 starts operation, and outputs the driver circuit drive signal DPs and the secondary side drive circuit drive signal STr. The output of the welding standby display instruction signal CDr is stopped and the welding operation display instruction signal CDs is output.
[0025]
The display instruction drive circuit IOC selects and drives each indicator of the welding condition display unit WLED described later according to the welding standby display instruction signal CDr and the welding operation display instruction signal CDs.
[0026]
The welding condition display unit WLED shown in FIG. 5 includes a welding current display WID driven by a welding current display signal WId output from the display instruction drive circuit IOC, a pulse current display PID driven by a pulse current display signal PId, and a crater current. Crater current display CID driven by display signal CId, initial current display EID driven by initial current display signal EId, AC welding display ADD driven by AC welding display signal ADd, pulse frequency driven by pulse frequency display signal PFd Display PFD, Upslope display ATD driven by upslope display signal ATd, Downslope display DTD driven by downslope display signal DTd, DC welding display DDD driven by DC welding display signal DDd, and cleaner It is formed by the cleaning indicator CLD driven by grayed display signal CLd.
[0027]
FIG. 6 is a timing chart showing the operation of the welding condition display device of the arc welder of the present invention shown in FIG. 4, and the welding condition is set to be crater without pulse in DC TIG welding. 6A shows the output current Io of direct current TIG welding, and FIG. 6B shows the start signal Ts output from the start switch TS. FIG. 6C shows a welding method setting signal Ws for selecting TIG welding and DC manual welding output from the welding method setting circuit WS. TIG welding is selected when the level is High, and DC manual welding is selected when the level is Low. To do. FIG. 6D shows a pulse setting signal Ps for selecting whether or not there is a pulse current output from the pulse setting circuit PS. The pulse setting signal Ps is selected when the level is High, and no pulse is selected when the level is Low. . FIG. 6E shows a DC / AC welding setting signal DAs for selecting either DC welding or AC welding output from the DC / AC welding setting circuit DAS. When the level is High, AC welding is set, and when the level is Low. Select DC welding. FIG. 6F shows a crater setting signal Cs for selecting whether or not there is a crater filler output from the crater setting circuit CS, and indicates that there is a crater filler at the high level and no crater filler at the low level. select.
[0028]
FIG. 6G shows an initial current display signal EId output from the display instruction drive circuit IOC to drive the initial current indicator EID, and FIG. 6H shows an up slope output from the display instruction drive circuit IOC. An up slope display signal ATd for driving the display ATD is shown, and FIG. 6I shows a welding current display signal WId for driving the welding current display WID output from the display instruction drive circuit IOC. FIG. 6J shows a DC welding display signal DDd output from the display instruction drive circuit IOC to drive the DC welding display DDD, and FIG. 6K outputs from the display instruction drive circuit IOC. A down slope display signal DTd for driving the down slope display DTD is shown, and FIG. 6L shows a crater current display signal CLd output from the display instruction drive circuit IOC to drive the crater current display CLD.
[0029]
In welding standby period T1 shown in FIG. 6, welding method setting signal Ws shown in FIG. 6 (C) is set to High level, and the pulse shown in FIG. 6 (D) is sent from welding method setting unit WCS to second control processing arithmetic circuit CDC2. When the setting signal Ps is set to the Low level, the DC / AC welding setting signal DAs shown in FIG. 6 (E) is set to the Low level, and the crater setting signal Cs shown in FIG. 6 (F) is set to the High level, the second control processing calculation is performed. The circuit CDC2 recognizes the welding conditions with no pulse and with a crater by direct current TIG welding as a welding method.
[0030]
When the second control processing arithmetic circuit CDC2 inputs a welding standby display instruction signal CDr (not shown) to the display instruction driving circuit IOC in the welding standby period T1, the display instruction driving circuit IOC is in accordance with the value of the input signal. 6G, the initial current display signal EId shown in FIG. 6G is output to turn on the initial current display EID of the welding condition display section WLED, and the upslope display signal ATd shown in FIG. 6H is output. The up-slope display ATD is turned on, and a welding current display signal WId shown in FIG. 6 (I) is output to turn on the welding current display WID. Further, the DC welding display signal DDd shown in FIG. 6 (J) is output to turn on the DC welding display DDD, and the down slope display signal DTd shown in FIG. 6 (K) is output to output the down slope display DTD. Is turned on, and the crater current display signal CId shown in FIG. 6 (L) is output to turn on the crater current indicator CID, and the welding conditions are displayed during the welding standby period T1.
[0031]
When the activation signal Ts is input to the second control processing arithmetic circuit CDC2 at time t = ta shown in FIG. 6B, the calculation is started, and a welding operation display instruction signal CDs (not shown) is supplied to the display instruction driving circuit IOC. input. When the welding operation display instruction signal CDs is input, the display instruction drive circuit IOC receives an initial current display signal EId during the initial current period t1 shown in FIG. 6G according to the welding operation display instruction signal CDs. Is output to light up the initial current indicator EID of the welding condition indicator WLED, and during the up slope period t2 shown in FIG. 6 (H), the up slope indicator signal ATd is output to turn on the up slope indicator ATD. Then, during the welding current period t3 shown in FIG. 6 (I), the welding current display signal WId is output to cause the welding current indicator WID. Further, during the downslope period t4 shown in FIG. 6 (K), the downslope display signal DTd is output to light the downslope display DTD, and during the crater current period t5 shown in FIG. 6 (L). The crater current display signal CId is output, the crater current display CID is turned on, and changes in the welding state during the welding operation period T2 shown in FIG. 6A are sequentially displayed by the respective indicators of the welding condition display unit WLED. be able to.
[0032]
A light emitting diode is normally used for each indicator of the welding condition display section WLED, but a lamp or an EL lamp may be used instead of the light emitting row diode.
[0033]
As the welding condition display device of the arc welding machine of the present invention, the detailed operation of the TIG welding machine has been described. However, the welding conditions of the present invention also apply to a CO2 / MAG welding machine, an MIG welding machine, a submerged welding machine, and a plasma cutting machine. The display device can be used.
【The invention's effect】
In the arc machine equipped with the machining condition display device of the present invention, it is easy to visually illuminate the indicator (light emitting diode) of the machining condition display unit arranged at a predetermined position of the arc machine from a considerable distance. The processing condition setting items can be confirmed. In addition, since it is now possible to check changes in machining conditions during machining operations sequentially by turning on the light emitting diodes, the machining condition change operations that occur during machining operations can be carried out more accurately than in the past, setting errors, etc. It can be expected to prevent welding defects due to.
[Brief description of the drawings]
FIG. 1 is a diagram that best represents the features of the invention according to the application;
FIG. 2 is a connection diagram of a welding condition display device of a conventional arc welding machine as a typical example of an arc machining machine.
FIG. 3 is a timing diagram showing the operation of the prior art arc welder shown in FIG. 2;
FIG. 4 is a connection diagram of a welding condition display device for an arc welder according to the present invention as a representative example of an arc machine.
FIG. 5 is a detailed view of a welding condition display section shown in FIG.
6 is a timing chart showing the operation of the welding condition display device for the arc welder of the present invention shown in FIG.
[Explanation of symbols]
1 Non-consumable electrode
2 Workpiece
AC AC welding command control circuit
AF Afterflow setting circuit
AT up slope time setting circuit
ADD AC / DC switching indicator
APC AC pulse welding command control circuit
ATD Upslope display
CI crater current setting circuit
CL cleaning width setting circuit
CS crater setting circuit
CID crater current indicator
CLD cleaning indicator
CDC control processing arithmetic circuit
CDC2 second control processing arithmetic circuit
DC DC welding command control circuit
DS secondary side driver circuit
DT down slope setting circuit
DR driver circuit
DAS DC / AC welding setting circuit
DDD DC welding indicator
DPC DC pulse welding command control circuit
DPS DC power supply main circuit
DTD Down slope indicator
EI initial current setting circuit
EID initial current indicator
ID output current detection circuit
IOC display instruction drive circuit
OWC output command value controller
PS pulse setting circuit
PF pulse frequency setting circuit
PI pulse current setting circuit
PFD pulse frequency indicator
PID pulse current indicator
STR secondary side switching circuit
TS start switch
WI welding current setting circuit
WS welding method setting circuit
WCE welding condition setting part (processing condition setting part)
WCS welding method setting part (processing method setting part)
WID welding current indicator
WLED Welding condition display part (Processing condition display part)
Ac AC welding command control signal
Af Afterflow setting signal
At Up Slope time setting signal
APc AC pulse welding command control signal
Ci crater current setting signal
Cl cleaning width setting signal
Cs Crater setting signal
CDr Welding standby display instruction signal (machining standby display instruction signal)
CDs Welding operation display instruction signal (machining operation display instruction signal)
Dc DC welding command control signal
Dr DC power supply drive signal
Ds Secondary side driver drive signal
Dt Down slope setting signal
DAs DC / AC welding setting signal
DPc DC pulse welding command control signal
DPs Driver circuit drive signal
Ei Initial current setting signal
Id Output current detection signal
IOc Welding condition display signal
Pf Pulse frequency setting signal
Pi pulse current setting signal
Ps pulse setting signal
STr Secondary side drive circuit drive signal
Ts start signal
Wi welding current setting signal
Ws Welding method setting signal
T1 Welding standby period (processing standby period)
T2 Welding operation period (machining operation period)
t1 Initial current period
t2 Upslope period
t3 Welding current period
t4 Down slope period
t5 Crater current period

Claims (1)

A DC power supply main circuit that converts AC power into DC and supplies DC power, and the DC power is converted into AC power by a secondary side switching circuit, and AC power is generated between the non-consumable electrode and the workpiece. In the welding condition display device of the arc welding machine to be supplied, a welding condition setting unit for setting a plurality of predetermined welding conditions, a welding method setting unit for setting a predetermined welding method, and the welding method setting unit are set. Depending on the welding method, during welding standby, a welding condition setting signal from the welding condition setting unit is selected and a welding standby display instruction signal is output. During the welding operation, the DC power supply main circuit and the secondary side switching circuit are switched on. A second control processing arithmetic circuit for controlling and outputting a welding operation display instruction signal and a predetermined position of the arc welder, and during the welding standby, according to the welding standby display instruction signal A display corresponding to the welding condition setting signal is turned on to display setting items for each welding condition, and during the welding operation, when the welding condition setting signal changes according to the welding operation display instruction signal, a corresponding indicator is displayed. A welding condition display unit for an arc welding machine, comprising: a welding condition display unit that sequentially turns on and displays a welding operation state.

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